CMI_SB_STREAM
ops = snd_sb16dsp_get_pcm_ops(CMI_SB_STREAM);
chip->streams[CMI_SB_STREAM].ops = *ops;
chip->streams[CMI_SB_STREAM].open = ops->open;
chip->streams[CMI_SB_STREAM].ops.open = cmi_open_callbacks[CMI_SB_STREAM];
chip->streams[CMI_SB_STREAM].private_data = chip->sb;